Dev tools · alternatives · 2026

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Fuzzpy, a fuzzer for testing CPython launched in 2016; newer entries below may have overtaken it.

1. 1
   Pfuzz, a web fuzzer following the Unix philosophy▲93

   I recently dipped my toes into bug bounty hunting and finding security flaws in web applications. As a friend of UNIX shells I was building a repertoire of command line tools to make and analyze HTTP requests. Fortunately there are already many suitable tools like curl, jq, different fuzzers and some really nice tools for specific tasks by Tom Hudson [1]. However, I disliked that the existing fuzzers were monoliths where I had no easy way of creating custom behavior or analyses. They commonly do a multitude of things: Create multiple requests using one or more wordlist, sending the request,…

   2024 · github.com · its alternatives →

2. 2
   OpenAPI fuzzer – fuzzing APIs based on OpenAPI specification▲76

   Black-box fuzzer that fuzzes APIs based on OpenAPI specification. Find bugs for free! - matusf/openapi-fuzzer

   2021 · github.com · its alternatives →

3. 3
   PyFuzz2 – A little fuzzing framework in Python▲42

   My little fuzzing framework inspired by grinder. Contribute to susperius/PyFuzz2 development by creating an account on GitHub.

   2015 · github.com · its alternatives →

4. 4SU
   Spice up Codemirror with particle explosions▲6

   2015 · kushagragour.in · its alternatives →

5. 5
   An easy to understand FizzBuzz using TensorFlow▲5

   2016 · github.com · its alternatives →

6. 6
   Faking SIMD to Search and Sort Strings 5x Faster▲29

   I want to share a really dumb, but very practical project I have packaged this summer, to perform operations on strings much faster. I was using Python to work with a multi-terabyte newline-delimited file. Reading, splitting, and shuffling it was a nightmare. So, I wrapped a trivial hardware-friendly heuristic I've been using for the last few years into a CPython library. The part I enjoyed the most is implementing SIMD behavior without SIMD instructions... Using 64-bit words to work at 8-bit granularity. Unlike conventional SIMD, the code would remain the same for ~~almost~~ any hardware.…

   2023 · ashvardanian.com · its alternatives →

7. 7AC
   A CPython Library for Runtime Bytecode Transformations▲5

   2016 · codetransformer.readthedocs.org · its alternatives →

8. 8SI
   Snake in ~50 readable lines of JavaScript▲8

   2022 · onsclom.net · its alternatives →

9. 9
   UZZ3.0▲5

   uzz 3.0: a creative sequencer for ableton live 9.

   2017 · animatek.net · its alternatives →

10. 10
    Falkervisor, a hypervisor designed for fuzzing▲7

    Contribute to gamozolabs/falkervisor_grilled_cheese development by creating an account on GitHub.

    2018 · github.com · its alternatives →

11. 11
    Fuzz Forge, vulnerability discovery with AI and fuzzing▲11

    2025 · github.com · its alternatives →

12. 12CG
    Codebattle – game for coders▲7

    2015 · battle.hexlet.io · its alternatives →

13. 13
    Fuge, an Erlang Port of GitHub's Scientist Library▲6

    An Erlang library for carefully refactoring critical paths - sthadka/fuge

    2016 · github.com · its alternatives →

14. 14
    PyPhantom – A Simple PhantomJS API▲9

    2015 · github.com · its alternatives →

15. 15PA
    Pineapple, a standalone IPython front end for Mac▲6

    2015 · nwhitehead.github.io · its alternatives →

16. 16S
    SherlockCode▲9

    2013 · sherlockcode.com · its alternatives →

17. 17
    FlashFuzz▲8

    Quick URL fuzzing and secret scanning in-browser

    2025 · github.com · its alternatives →

18. 18BA
    BandFu, an experimental audio playground▲5

    2013 · bandfu.com · its alternatives →

19. 19CP
    CodeStruct – Python programming environment for novices after Scratch▲9

    2022 · code-struct.vercel.app · its alternatives →

20. 20WB
    Web based interactive Malbolge interpreter, generator and a crackme▲7

    2015 · zb3.github.io · its alternatives →

21. 21
    Openemacs – a tiny emacs clone, ≤ 1024 LOC (C), based on kilo (BSD)▲8

    2016 · github.com · its alternatives →

22. 22
    Muon, a meson implementation written in C▲5

    2021 · sr.ht · its alternatives →

23. 23GC
    GitHub Copilot Can Help with Shell Scripting▲5

    2022 · medium.com · its alternatives →

24. 24
    A Golang library to build Turing machine▲6

    2019 · made2591.github.io · its alternatives →

Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →